公开(公告)号：EP2098057A1

公开(公告)日：2009-09-09

申请号：EP07849006.7

申请日：2007-12-11

申请人： Nokia Corporation ,  Nokia Inc.

发明人： AHMANIEMI, Ali ,  VIROLAINEN, Jussi ,  PASANEN, Antti

IPC分类号： H04M3/56

CPC分类号： H04M3/56 ,  H04L12/1822 ,  H04L12/1827 ,  H04L12/189 ,  H04M3/562 ,  H04M2250/12 ,  H04W4/02 ,  H04W4/06

摘要： Teleconferencing and, in particular, distributed teleconferencing may use methods and systems for location grouping to reduce feedback and other audio anomalies. Terminals and users connected to the same teleconference and in the same location might not need to receive audio signals from the other terminals and users in the same location. As such, by detecting and analyzing the location of each participating terminal, the terminals (and thus, the users thereof) may be organized into location groups to provide proper audio mixing. In one example, first and second terminals in the same location might not receive each other's audio in a downstream teleconference signal. The location and grouping of terminals may be processed using context fingerprint information derived from sensor readings of each terminal. Sensors may include GPS sensors, cameras, BLUETOOTH sensors and the like. Context fingerprint information may further be synchronized to enhance location determination and grouping.

摘要翻译： 电话会议，特别是分布式电话会议可以使用位置分组的方法和系统来减少反馈和其他音频异常。 连接到同一电话会议和相同位置的终端和用户可能不需要从同一位置的其他终端和用户接收音频信号。 因此，通过检测和分析每个参与终端的位置，终端（并且因此其用户）可以被组织成位置组以提供适当的音频混合。 在一个示例中，相同位置中的第一和第二终端可能不会在下游电话会议信号中接收彼此的音频。 可以使用从每个终端的传感器读数导出的上下文指纹信息来处理终端的位置和分组。 传感器可以包括GPS传感器，照相机，BLUETOOTH传感器等。 可以进一步同步上下文指纹信息以增强位置确定和分组。

公开(公告)号：EP2116037A1

公开(公告)日：2009-11-11

申请号：EP07859382.9

申请日：2007-12-13

申请人： Nokia Corporation

发明人： VIROLAINEN, Jussi ,  LAAKSONEN, Laura ,  AHMANIEMI, Ali ,  VALVE, Päivi

IPC分类号： H04M3/56 ,  H04M1/725

CPC分类号： H04M3/56 ,  H04M1/7253 ,  H04M3/562 ,  H04M3/564 ,  H04M3/568 ,  H04M2250/06 ,  H04M2250/62 ,  H04W4/00 ,  H04W8/26 ,  H04W48/08

摘要： Provided are multichannel architectures, systems, methods, and computer program products for distributed teleconferencing using one or more master devices and/or a centralized conferencing switch. Multichannels enhance functionality of a master device in distributed teleconferencing and allow for compatibility with 3D capable teleconferencing. Multichannel distributed teleconferencing involves multichannel, monophonic, and/or a fixed number of uplink and downlink channels. A multichannel distributed teleconferencing system may perform active talker detection of near-end participants and communicate an ID signal on an uplink channel identifying the active near-end participants. A multichannel distributed teleconferencing system may also receive an ID signal on a downlink channel identifying the active far-end participants. A multichannel distributed teleconferencing system may perform various uplink and downlink processing. Uplink processing may involve multimixing and spatialization. Multimixing may be used to separate speech signals of near-end participants. Spatialization, also used in downlink processing, introduces spatial separation of active participants.